New York, 2011

Lake-Effect Snow in New York, January 4 to 5, 2011

January 4 to 5, 2011 · NWS ALY · 1 event in 1 county or zone

Colder air moving over the relatively warmer waters of Lake Ontario resulted in lake effect snow bands which impacted southern Herkimer County Tuesday evening, January 4th, into Wednesday morning, January 5th. The lake effect snow bands shifted to the south of Herkimer County Wednesday morning.

Where it happened

Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS ALY wrote it up.

Colder air moving over the relatively warmer waters of Lake Ontario resulted in lake effect snow bands which impacted southern Herkimer County Tuesday evening, January 4th, into Wednesday morning, January 5th. The lake effect snow bands shifted to the south of Herkimer County Wednesday morning. The highest snowfall report received was from Poland with 7.8 inches, with other reports ranging from 3 to 5 inches.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 lake-effect snow. Local standard time, as filed.

Lake-Effect Snow, Southern Herkimer

When
January 4, 8:00 PM EST to January 5, 6:30 AM EST
Where
Southern Herkimer forecast zone
Reported by
Trained Spotter
Coordinates
43.420, -74.962 (the zone’s center; the record gives no point)

What these are

Lake-Effect Snow
Heavy snow in bands downwind of a large lake as cold air crosses warmer water.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in New York in 2011Every state in 2011This day in weather historyWarnings in New York, January 2011

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 275983.